@ -27,6 +27,10 @@ This option makes ``offset`` skip bytes relative to the previous match.
The content match that you want to decode relative to must be the first match in the stream.
The content match that you want to decode relative to must be the first match in the stream.
..note::``base64_decode`` follows RFC 4648 by default i.e. encounter with any character that is not found in the base64 alphabet leads to rejection of that character and the rest of the string.
See Redmine Bug 5223: https://redmine.openinfosecfoundation.org/issues/5223 and RFC 4648: https://www.rfc-editor.org/rfc/rfc4648#section-3.3